This may seem old school but I actually have a printed out spiral bound deck customized to the client that I take to pitches. In addition to the digital presentation.

I do it for a few reasons:

1. Because our service is expensive and some more old school clients want to hold something in their hand

2. It sits on their desk pretty much forever, keeping the brand in front at all times

But it has the added benefit that even if the power goes out, I would still be able to pitch.